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    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
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    <script type="module">
      //默认导出只有一个，导入默认的时候，名字可以是任意的
      import xxx from './03.js'
      console.log(xxx)
      console.log(xxx.age)
    </script>
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